Wind-control mechanism for thrashing machines



May 18, 1926.

1,584,790 l.. J. M5L-LER WIND CONTROL MECHANISM FOR THRASHING MACHINESFiled Nov, 1ol 1924 and rear ends ot the. shoe. The oriosite` i ends oitsaid links 2l and Q53 are respectively mounted on the extremities otcianli arins 26 and 2T pivotally mounted in braclets secured to theunderside or bottom ot the shoe and equipped at their outer ends withoperating handles 29. lilith this construction it will be evident thatthe opposite ends of the riddle may be vertically adjusted within theslots Q3 from a point exterior ot the machine. In order to secure saidriddle in any desired position of adjustment` wing clamp nuts 30 arescrewed on each o1 the threaded bolts and by clamping the links Q-l andtightly against the sides ot the shoe, the ends ot' the screen aresecurely maintained in any predetermined position. In this connection itis to be understood that the sides 2 of the thrasher body are cut away(not shown) to permit the operator to reach and operate the wing` nuts30.

Referring again to the tan casing it will be noted that the upperdetlector 7 terminates at such point that the current of air iSdeflected in a plane below that ot' the riddle. Pivotally secured to theedge of the lower detlector 8 is a wind board 31, the tree edge ot saidboard terminating substantially vertically below the edge of thedeiiector 7, and the angular position of said wind board may be readilyadjusted by means ot a pair of ears 32 secured to the opposite ends otthe board and each carrying an adjusting screw which bears against theoutside face oit the detlector S. By adjusting the screws 83 the angularposition ot' the wind board 3l may be readily changed to vary theangular adjustment ot the blast ot air to suit the condition of thegrain and chatif dropped onto the riddle, as common in the art, it beingunderstood that the purpose ot the wind blast is to clean the chati fromthe grain by blowing upwardly trom below the riddle` the. chai beingprojected ott the back end of the riddle to the steel-:er (not shown),while any material such as dirtparticles or the like, or perhaps a smallquantity ot the lighter grain drops oit the riddle into the conveyorfl-t and is again passed through the thrasher, while the grain dropsthrough the riddle to the bottom ot the shoe. and` due to theoscillation ot' said shoe, is propelled torwardly and finally drops intothe conveyor and is carried to the sacher or grain weighing device, notshown.

its before mentnined, it has been tound that the grain, due to varyingweight conditions or the charaeterot the straw or methods ot Yi'eed andthe l'l-Ie, will not be evenly distributed when delivered to the riddle,and in order to provide means whereby the blast ot air may be laterallyadjusted while the machine is in operation to meet these conditions, aseries ot vertical deflecting blades 3G having iianges 37 pivotallymounted on the wind board 3l are secured at intervals (sce Figure iorthe full length ot the board. or" air delivered by the blower issubstantially that ot two separate but simultaneously driven blowers,and in order to provide means tor the separate adjustment ol each blast,the 'tree or projecting ends ol all or the ilanges 3.7 on the right andlett sides ci' the i'an division member lo are respectively pivotallysecured to rods 38 and 25S) projecting loosely through registering.slots Vl-(l in the sides Q ot the thrasher and in spacing blocks ilmounted on the trame l. said slot; being provided to permit ot angularadjustment ot' the wind hoard around hinge point above mentioned. Therods 3S and 39 are normally pressed toward each other by expansionsprings 42 and fl-l prey-:ing at their opposite ends respectivelyagainst Vthi sides Q ot' the separator and against the adjacent winddetlcctor flanges il?. In order to provide means whereby the detlectorsmay be laterally adjusted, the ends ot the rods 3S and 39 are threadedand are engage-:l with hand wheels 44, whereby the angular positions otthe detlectors may be varied against the action ot the springs l2 andtil, as will be readily understood, to sej'iarately direct the blast otair from the divided blower. It will be apparent that ly a greaterangular adjustment ot one set otl detlectors than the other, the majorportion oi the blast ot air can be concentrated on the riddle nearer oneside than the other, and that an equal convergence ot the deflectors maybe eltected to concentrate the heaviest torce of the blast in thecentral part of the riddle. It will thus be apparent that the blast ofair may be regulated to meetvarying conditions and lead to a bettergrain cleaning action. l

From the above description, it will be anparent that I have produced adevice ol the character described which possesses all ol the features ofadvantage pointed out as desirable. and while I have described andclaimed the preferred embodiment ol the same, I reserve the right tomalte all changes properly falling within the spirit and scope ot theappended claims.

I claim:

l. In a separator, the combination ol a easing having inlet and outletopenings. a blower in said casing. a series ot :uljustahle detlectorssecured along the edge ot' said outlet opening whereby the current ofair may be laterally deflected, and means tor adjusting said detlector.

2. In a separator` the combination ol an open-ended casing having anoutlet opening. a blower in said casing, supports projecting beyond thesides oi the separator, and guard s heretofore pointed out the blastplate cariied'by said supports and paifallel to but spaced .from theends of said easing.

3. ln a Separator, the combination of a easing having` inlet and outletopenings, a blower n said easing, a series of ad'jiistable defleetoispivotallf,7 Secured along' the edge of said outlet opening, and anoperating' rod; eaeli of said deeetors being pivotally secured at one oftheir ends to said rod. l

el. In a Separator, the combination of a easing having inlet and voutletopenings, a blower in Said easing, a partit-ion dividing said blowercentrally, two series of adjustable deleetoi-s 'pivotally secured alongthe edge of said outlet opening, and a pair of oper-ating rods; the'defleetois of eaeli series being ieepeetively secuied to one of saidoperating' rods.

5. ln a separator, the combination of a easing' having inlet and outletopenings, a blower in said easing, a hinged wind board seeni'ed alongthe edge of said outlet to vary tlie vertical direction ol the blast ofair Set up by said blower, a series of dei'iecto-s secured to said windboard for varying the lateral direction of said blast of ai?, and meansfor operating said deleetors.

In witness whereof I hereunto a'lix my signature.

LARKIN J. MILLER.

